Sentences with phrase «sized water droplets»

Kim et al. used femtosecond x-ray laser pulses to probe micrometer - sized water droplets cooled to 227 K (see the Perspective by Gallo and Stanley).

On page 1589 of this issue, Kim et al. (2) use an evaporative cooling technique to cool micrometer - sized water droplets to deeply supercooled temperatures and provide evidence for the postulated critical point.

Not exact matches

His most recent is a cylindrical «submarine,» about the size of a red blood cell and made of gold, nickel, platinum, and a polymer, that can collect oil droplets in water.

While the particles are small in size, they are large in number, and they can form many small droplets on which the excess water vapor condenses.

IN THE CLOUDS Many of the water droplets that make up clouds get a size boost from carbon - containing molecules that assemble on the droplets» exterior, new research suggests.

All the materials became waterproof and self - cleaning as water droplets of different sizes were seen bouncing instead of wetting the surface, removing the dirt applied by the researchers.

The team mixed molybdenum disulfide with water and used the printing process to expel micron - size droplets into an enclosed area about 2 feet high.

Over land, the small size of these aerosol particles tends to suppress rainfall because the water droplets that condense on them are light enough to remain aloft.

When these forces meet, they launch a jet of water into the air that contains droplets ranging in size from one to 100 microns.

The grooves are just the right size and shape to condense water molecules directly from moist air and to catch microscopic fog droplets.

With the help of BYU chemical engineering professor Bill Pitt, Zhao was able to mathematically model the energy cost of the water molecules and fog droplets, showing that the shape and size of the nano - grooves lowered the energy cost to condense water and capture fog from the atmosphere onto the awn.

This conclusion was experimentally validated by actively sliding a water droplet on solid surfaces with micro-holes and micro-pillars of various sizes while simultaneously measuring the resultant sliding friction forces.

One reason: Instruments of decades past couldn't measure water droplet size in clouds in real time.

They then submerged them in a mixture of silicone oil and water that they blasted with ultrasonic sound waves to generate micrometer - sized oil droplets.

Indeed, conventional wisdom held that higher levels of aerosol pollution in the atmosphere should cool the earth's climate because aerosols can increase cloudiness; they not only reduce precipitation, which raises the water content in clouds, but they also increase the size of the individual water droplets, which in turn causes more warming sunlight to be reflected back into space.

Rosenfeld then divides the total volume of water in the cloud by the droplet size to reveal an estimate of the total number of cloud droplets.

This involved the equivalent of a micro-faucet of distilled water that used vibration to drip at a set rate and droplet size.

As Cesar Cabrera, first author of the study, explains: «in many aspects, our potassium droplets are very similar to those of water: they have their own size and shape, regardless of where we put them, but they are much colder and their properties are quantum.»

They would then shrink to the size of molecules and become the droplets of water that come from the redwood's highest branches.

In the darkened contemporary gallery, one wall was dominated by Magali Reus's wall - sized video projection Highly Liquid (2013), a shower scene mimicking commercials in which close - ups of water droplets splash and roll down a man's chiselled body.

Since I know that the density and average particle size of water droplets impact ventilation of a condensation layer I am curious why you keep saying that «we got it all covered.

The precise balance of these opposing effects depends on time of day, time of year, altitude, size of the water droplets and / or ice particles, latitude, current air temperature, and size and shape.

Current joint measurement projects include assessment of liquid water volume from passive fog collectors (run by scientists at California State University, Monterey Bay, and NASA Ames Research Center), active fog sampling for mercury (run by researchers at the University of California, Santa Cruz), and measurement of droplet size and distribution (run by Georgia Southern University researchers).

Volcanic aerosols scatter as well as reflect, impact cloud water droplet size and have a stronger impact in day than night and greater impact in the northern hemisphere than the southern hemisphere on surface air temperatures.

Once the droplets form a critical size, the water drains into a collection vessel for reuse at the household level in washing or irrigation applications.

Clouds can have either a positive or negative feedback effect, depending on their altitude and the size of their water droplets.

Han, Q., W.B. Rossow, J. Chou, and R.M. Welch, 1998: Global survey of the relationships of cloud albedo and liquid water path with droplet size using ISCCP.